65373942091 has 2 divisors, whose sum is σ = 65373942092. Its totient is φ = 65373942090.

The previous prime is 65373942089. The next prime is 65373942149. The reversal of 65373942091 is 19024937356.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65373942091 - 2¹ = 65373942089 is a prime.

Together with 65373942089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (65373972091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32686971045 + 32686971046.

It is an arithmetic number, because the mean of its divisors is an integer number (32686971046).

Almost surely, 2^65373942091 is an apocalyptic number.

65373942091 is a deficient number, since it is larger than the sum of its proper divisors (1).

65373942091 is an equidigital number, since it uses as much as digits as its factorization.

65373942091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 49.

The spelling of 65373942091 in words is "sixty-five billion, three hundred seventy-three million, nine hundred forty-two thousand, ninety-one".